a-a a-b a-t aaa aab aad aao aar aas aat aau ab- aba abb abd abo abr abs abt abu ad- ada adb add ado adr ads adt adu aoa aob aod aoo aor aos aot aou ar- ara arb ard aro arr ars art aru as- asa asb asd aso asr ass ast asu at- ata atb atd ato atr ats att atu au- aua aub aud auo aur aus aut b-u baa bab bad bao bar bas bat bau bba bbb bbd bbo bbr bbs bbt bbu bda bdb bdd bdo bdr bds bdt bdu boa bob bod boo bor bos bot bou bra brb brd bro brr brs brt bru bsa bsb bsd bso bsr bss bst bsu bta btb btd bto btr bts btt btu bua bub bud buo bur bus but buu daa dab dad dao dar das dat dau dba dbb dbd dbo dbr dbs dbt dbu dda ddb ddd ddo ddr dds ddt ddu doa dob dod doo dor dos dot dou dra drb drd dro drr drs drt dru dsa dsb dsd dso dsr dss dst dsu dta dtb dtd dto dtr dts dtt dtu dua dub dud duo dur dus dut oaa oab oad oao oar oas oat oau ob- oba obb obd obo obr obs obt obu oda odb odd odo odr ods odt odu oo- ooa oob ood ooo oor oos oot or- ora orb ord oro orr ors ort oru os- osa osb osd oso osr oss ost osu ot- ota otb otd oto otr ots ott otu ou- oua oud ouo our ous out ra- raa rab rad rao rar ras rat rau rba rbb rbd rbo rbr rbs rbt rbu rda rdb rdd rdo rdr rds rdt rdu roa rob rod roo ror ros rot rou rra rrb rrd rrr rrs rrt rru rsa rsb rsd rso rsr rss rst rsu rta rtb rtd rto rtr rts rtt rtu rua rub rud ruo rur rus rut ruu saa sab sad sao sar sas sat sau sba sbb sbd sbo sbr sbs sbt sbu sda sdb sdd sdo sdr sds sdt sdu soa sob sod soo sor sos sot sou sr- sra srb srd sro srr srs srt ss- ssa ssb ssd sso ssr sss sst ssu sta stb std sto str sts stt stu sua sub sud suo sur sus sut suu taa tab tad tao tar tas tat tau tba tbb tbd tbo tbr tbs tbt tbu tda tdb tdd tdo tdr tds tdt tdu to- toa tob tod too tor tos tot tou tra trb trd tro trr trs trt tru tsa tsb tsd tso tsr tss tst tsu tta ttb ttd tto ttr tts ttt ttu tua tub tud tuo tur tus tut tuu ua- uaa uab uad uao uar uas uat uau uba ubb ubo ubr ubs ubt ubu uda udb udd udo udr uds udt udu uoa uob uod uoo uor uos uot ur- ura urb urd uro urr urs urt uru usa usb usd uso usr uss ust usu uta utb utd uto utr uts utt utu uua uur uus uut uuu

-ous a-do aaaa aaab aaad aaar aaas aaba aabb aabd aabt aada aads aadt aadu aaoo aara aard aaro aars aart aaru aasa aasd aass aast aasu aata aatt aaus abaa abab abad abar abas abat abau abb- abba abbb abbo abbr abbs abbt abda abdo abdu aboa abob abod aboo abor abos abot abou abra abro abrs abs- absa absd abss absu abta abts abtu abua abud abus abut adaa adab adad adao adar adas adat adba adda addd addo addr adds addu adob adod adoo ador ados adot adra adro adrs adsa adso adsr adss adst adta adts adua adub adur aoba aora aorb aors aort aosd aoss aotd aous aout arab arad arar aras arat arau arba arbs arda ardo ards ardu aroa arob arod aroo aror aros arr- arra arro arrr arrs arrt arru ars- arsa arsd arso arst arsu arta arto artr arts arua arub arud arut asaa asab asad asao asar asas asat asau asba asbo asbu asda asdo asds asob asod asor asos asot asou asra asro asrs asru assa assd asso assr asss asst assu asta astb asto astr asts asub asud asur asus at-t ataa atab atad atar atas atat atbs atdt atob atod ator atos atot atra atro atru atsb atst atta atto attr atts attu atua atub atur atus auaa audo aur- aura aurd auro ausa ausd aust ausu aut- auto auts baaa baad baar baas baat baba babb babo babr babs babu bada badb badd bado badr bads badu baos bar- bara barb bard baro barr bars bart baru basa baso bass bast basu bata bato bats batt batu bau- baud baur bbad bbas bbau bbbb bbbs bbdd bbdo bd-r bdos bdsd boab boad boar boas boat boba bobb bobo bobs bobu boda bodb bodo bods bodu boob bood boor boos boot bor- bora bord boro borr bors bort boru bosa boso boss bost bosu bota botb botd boto bots bott boua boud bour bous bout brab brad brao bras brat brau brda brdo brds brdt broa brob brod broo bror bros brot brou brrr brrs brsb brsr brst brud brus brut bsaa bsas bsat bsbd bsod bsos bsra bsrd bssd bsts btaa btdt btob btor btrt btss bttb btus buad buar buat buba bubb bubo bubs bubu buda budb budd budo buds budu bur- bura burb burd buro burr burs burt buru busa buss bust busu but- buta buto buts butt buus d-bo daab daad daar daas daau daba dabb dabo dabs dabt dabu dada dado dads dadu daos daou dara darb dard daro darr dars dart daru dasa dasb dasd dass dast data dato datr dats datt datu daub daud daur daus daut dbar dbas dbos dbrs dbsa dbss dbtt dbus dddd ddot ddss ddts ddub doab doar doas doat doba dobb dobs dobu dod- doda dodd dodo dods doob dood door doos doot